Tisha B'Av (the 9th day of the month of Av) which we commemorate this year on July 15-16, reminds us that over 2,000 years ago Jews failed to heed the warnings of the prophet Jeremiah, with the result that the first Temple in Jerusalem was destroyed, the first of many negative things that occurred on that day, including the destruction of the second Temple as well.
Today there are many "Jeremiahs" warning us that now it is the entire world that is threatened by climate change and its effects, species extinction, soil erosion, destruction of tropical rain forests and ...
